Bar-code Rod
Bar-code Rod - Related Videos
13:14
Genetic Barcoding with Fluorescent Proteins for Multiplexed Applications
0 Views •
Cited by 4 •
2015
Since the discovery of the green fluorescent protein gene, fluorescent proteins have impacted molecular cell biology. This protocol describes how expression of distinct fluorescent proteins through genetic engineering is used for barcoding individual cells. The procedure enables tracking distinct populations in a cell mixture, which is ideal for multiplexed applications.
12:59
BEST: Barcode Enabled Sequencing of Tetrads
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Cited by 4 •
2014
Barcode Enabled Sequencing of Tetrads (BEST) replaces the manual processes of isolating, disrupting and spacing tetrads. BEST isolates tetrads by fluorescence-activated cell sorting onto agar plates, separates the spores by agitation with glass beads, and determines which randomly arrayed colonies were derived from the same original tetrad using molecular barcodes.
11:59
Competitive Genomic Screens of Barcoded Yeast Libraries
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Cited by 44 •
2011
We have developed comprehensive, unbiased genome-wide screens to understand gene-drug and gene-environment interactions. Methods for screening these mutant collections are presented.
08:55
Application of DNA Barcoding to Identify Medicinal Plants
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Cited by 2 •
2024
The present protocol describes the use of DNA barcoding technology to authenticate plant-based medicinal materials, and the medicinal plant Angelica sinensis (Oliv.) Diels was identified as an example.
05:42
A Barcoding Assay for Phenotypic and Functional Characterization of Immune Cells
0 Views •
2025
This video highlights a single-cell proteomic method that employs heavy-metal-conjugated antibodies for distinct cell barcoding. Subsequently, immunostaining and mass cytometry are applied to evaluate immune phenotypic and functional alterations in human whole blood-derived immune cells.
FAQs
An optical sensor reads the alternating bars and spaces rather than relying on an operator to interpret visual graduations. The digital level compares the captured pattern with a stored scale, then derives the rod reading and staff position. This processing converts the rod’s physical marking into measurement data for automated leveling and electronic recording.
The stored scale provides the reference needed to interpret the captured pattern consistently. By matching the observed sequence of bars and spaces against that reference, the instrument identifies the staff position relative to the level. That relationship allows the system to calculate elevation differences instead of producing only an unprocessed optical observation.
Compared with conventional visual graduations, a bar-code rod supports direct machine reading. The digital level performs pattern recognition and calculation, reducing dependence on manual visual interpretation. In engineering surveys, this difference can reduce reading errors, improve consistency between measurements, and support direct electronic recording rather than relying on separately transcribed readings.
Standardized markings provide a repeatable pattern that the optical sensor can recognize and the digital level can compare with its stored scale. Consistent coding allows the same interpretation process to be applied across measurements. This standardization supports measurement consistency and helps limit errors associated with visually reading the staff.
A basic workflow begins by observing the marked staff through a digital level. The instrument captures the alternating bar-and-space pattern, matches it to the stored scale, and calculates the rod reading and staff position. The resulting measurement can then be recorded electronically, supporting a faster and more integrated leveling procedure.
Bar-code rods support several engineering activities, including land surveying, construction layout, infrastructure inspection, and deformation monitoring. They provide useful elevation-related measurement data for these tasks while automated readings improve collection speed and consistency. Direct electronic recording also helps organize survey results for engineering work that requires reliable, repeatable measurements.